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authorBartosz Golaszewski <bartosz.golaszewski@linaro.org>2023-08-17 16:18:58 +0300
committerBartosz Golaszewski <bartosz.golaszewski@linaro.org>2023-08-21 16:57:05 +0300
commita0dda508bd66b9eeeedc6fe0597aa8613f4b3c5d (patch)
tree97e1cdb3c5cb467a4ffbd58a395d7044cd57aa25 /scripts/gdb/linux/utils.py
parentd2e2586a3292e05d4872e9111e8b005bc4ff4d09 (diff)
downloadlinux-a0dda508bd66b9eeeedc6fe0597aa8613f4b3c5d.tar.xz
gpio: cdev: wake up linereq poll() on device unbind
Add a notifier block to the linereq structure and register it with the gpio_device's device notifier. Upon reception of an event, wake up the wait queue so that the user-space be forced out of poll() and need to go into a new system call which will then fail due to the chip being gone. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Kent Gibson <warthog618@gmail.com>
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